Seriously, if you break up and get back together all the time, there is something fundamentally wrong with your relationship. If you can't work it out it is time to move on.

If it were me, I would give it a couple more weeks. If he isn't calling you he is either
A. Stubborn
B. Needing time to think things over/cool down
C. Over it

If he is being stubborn he than he deserves to not have you call him.
If he needs time to think things over, be respectful and give him that time. You don't want to push him into a decision that he will later regret or resent you for.
If he is over it, then you don't want to be with someone who doesn't want to be with you.

I know how anxious you feel and how scary it is, and with each day that goes by it becomes harder, but hang in there.

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=) Stephanie